X0202 4 2007-10-11 0 0000880562 UNIFY CORP UFYC 0001044321 MARXE AUSTIN W & GREENHOUSE DAVID M C/O SPECIAL SITUATIONS FUNDS 527 MADISON AVENUE, SUITE 2600 NEW YORK NY 10022 0 0 1 0 Common Stock 2007-10-11 4 P 0 54683 4 A 1379577 I By Limited Partnerships This is a joint filing by Austin W. Marxe (Marxe) & David M. Greenhouse (Greenhouse). They share voting and investment control over all securities owned by Special Situations Fund III QP, L.P. (QP), Special Situations Cayman Fund, L.P. (Cay), Special Situations Private Equity Fund, LP (PE), Special Situations Technology Fund, L.P. (Tech) & Special Situations Technology II, L.P. (Tech II), respectively 586,193 shares of Common Stock are held by QP, 190,938 shares of Common Stock are held by Cay, 300,513 shares of Common Stock are held by PE, 50,170 shares of Common Stock are held by Tech & 251,763 shares of Common Stock are held by Tech II. The interest of Marxe and Greenhouse in the shares of Common Stock owned by QP, Cay, PE, Tech & Tech II is limited to the extent of his pecuniary interest. Austin W. Marxe 2007-10-15 David M. Greenhouse 2007-10-15